[특허]Process controlling a blow molding machine

[미국특허] Process controlling a blow molding machine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-049/78
출원번호	US-0241275 (1994-05-10)
발명자 / 주소	Campbell G. Edward Chiang Casper W. Castillo Victor M. Wolters Frederick C. Baker Jerry Crossan John D. Gallaher Jeff E. Rouse Jay A. Heiskell Ronald E.
출원인 / 주소	The Clorox Company
대리인 / 주소	Majestic, Parsons, Siebert & Hsue
인용정보	피인용 횟수 : 13 인용 특허 : 21

초록 ▼

The method for controlling a blowmolding machine during a process of making an object is disclosed. The machine includes a die head, a mandrel and an extruder that rotates and drives a plastic material between the mandrel and the die head to form a plurality of elongated parisons. The method comprises setting the distance between the die head and the mandrel and the rotation speed of the extruder to accomplish predetermined target values of the weight of the object and parison velocity. Plastic material is fed to the machine and the extruder is operated to form the parisons. A parameter related to the viscosity or melt index of the plastic material in the extruder is detected and the material distribution function and the speed of the extruder are adjusted in response to the parameter so that object weight and velocity of the parisons made are maintained substantially at target values.

대표청구항 ▼

[ What is claimed is:] [1.] A method for controlling a blow molding machine during a process of making a hollow object, said machine including a die head, a mandrel, an extruder that rotates and drives a plastic material between the mandrel and the die head to form a plurality of elongated parisons, and a controller that causes a material distribution function to change during the formation of the parisons in a preprogrammed manner so that parisons having desired relative thicknesses along their lengths are formed, said method comprising:setting the distance between the die head and the mandrel and the rotational speed of the extruder to accomplish predetermined target values of weight of the object and parison velocity;feeding said plastic material to said machine and operating said extruder for forming the parisons;detecting pressure of the plastic material in the extruder at a location near the die head while the plastic material is being driven by the extruder; andadjusting the material distribution function and the speed of the extruder in the operation of the machine and extruder in response to the pressure so that object weight and velocity of the parisons made are maintained substantially at the target values, wherein said setting step sets and said adjusting step adjusts the function by setting and adjusting a reference distance between the die head and mandrel during the formation of the parisons, said reference distance defining a weight gap g of the machine.

이 특허에 인용된 특허 (21) 인용/피인용 타임라인 분석

McHenry Robert J. (St. Charles IL) Ryan Martin A. (Dunwoody GA), Apparatus for making a multi-layer injection blow molded container.
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Lemelson Jerome H. (85 Rector St. Metuchen NJ 08840), Apparatus for producing composite extrusions.
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Strum William L. (Kennett Square PA) Topolski Alvin S. (Wilmington DE), Coextrusion blowmolding process.
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Emery Donald B. (Warrenville IL) Herring William M. (Elburn IL), Continuous in-line melt flow rate control system.
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Daubenbuchel, Werner; Hess, Dieter, Controlling an extrusion blowing process.
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Harris Holton E. (Westport CT), Extruder viscosity control system and method.
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Thomas Alfred (Hennef-Dambroich DEX) pfelbach Bruno (Betzdorf DEX), Method and apparatus for producing extruded sections of thermoplastic material.
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Ibar Jean-Pierre (Avenue de la Division Leclerc Ballainvilliers (Essone) FRX 91160), Method and apparatus for transforming the physical characteristics of a material by controlling the influence of rheolog.
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Moon William S. (San Jose CA), Method and apparatus to control the density of products produced from an extrusion process.
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Rao Sundar M. (Seaford DE), Method for determining flow behavior index and using index to control polymer rheology and physical properties.
상세보기
Kurtz Stuart J. (Martinsville NJ) Blakeslee ; III Theodore R. (Hillsborough NJ) Scarola Leonard S. (Union NJ), Method for reducing sharkskin melt fracture during extrusion of ethylene polymers.
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Friedrich Reinhard (Dachtel DEX), Method of and apparatus for controlling the viscosity of molten plastics material which is to be moulded.
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Schwab, Erwin; Parisi, Graziano; Pander, Peter, Method of and apparatus for maintaining a constant wall thickness for an extruded article.
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Webster Charles N. (Grand Prairie TX) Scott Robert O. (Bedford TX), Method of controlling a resin curing process.
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Feuerherm Harald (Alfred-Delp-Strasse 1 D-5210 Troisdorf DEX), Method of controlling the position of an extruded preform in a blow mold.
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Feuerherm Harald (Alfred-Delp-Strasse 1 D-5210 Troisdorf DEX), Method of extrusion blow-molding hollow thermoplastic bodies.
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Valyi Emery I. (5200 Sycamore Ave. Riverdale NY 10471), Method of obtaining a filled, fluid barrier resistant plastic container.
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Lemelson Jerome H. (85 Rector St. Metuchen NJ 08840), Molding apparatus.
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Noguchi Tokuji (Ichikai JPX) Yano Masashi (Takanezawa JPX) Akimoto Masayuki (Kaminokawa JPX) Yamanoi Mitsuo (Utsunomiya JPX) Ohizumi Minoru (Tokyo JPX), Parison length control method for blow molding machine.
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Olsson Stefan (Gothenburg SEX) Widenbck Ralph (Stenungsund SEX), Process for blowing film from linear thermoplastic material.
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Pawlowski Joseph Z. (Clarksburg NJ) Ramamurthy Arakalgud V. (East Windsor NJ), Process for eliminating surface melt fracture during extrusion of thermoplastic polymers.
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이 특허를 인용한 특허 (13) 인용/피인용 타임라인 분석

Gogola, Michael R.; Marbach, Claude J., Beverage container.
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Gogola, Michael R.; Marbach, Claude J., Beverage container.
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Hayden, Leo; Young, Peter C., Container body.
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Stephens, Jo; Meyer, Jonathan P., Container body.
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Walsh, William J., Container body.
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Dillon, John C., Fluid dispenser with fluid weight monitor.
상세보기
Motegi, Takayuki; Ishiyama, Shinichi; Kurosawa, Takao; Shimizu, Yasuyuki, In-mold labeled container and molding process thereof.
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Hegler, Ralph Peter, Method and device for the continuous production of a plastic compound pipe comprising a pipe socket.
상세보기
Feuerherm Harald,DEX ; Deckwerth Horst,DEX ; Kappen-Feuerherm Rolf,DEX, Method of blow molding hollow articles from thermoplastic synthetic resin.
상세보기
Kikuchi, Atsushi; Hamada, Yorihisa; Etoh, Makoto; Watanabe, Kazunobu, Multi-layered preform and multi-layered bottle manufactured by using the same.
상세보기
Harris,Holton E., Plastics extruder dimension and viscosity control system.
상세보기
Dubois Eric,BEX, Process for marking an article produced by extrusion-blow molding.
상세보기
Dinkel John Philip ; Brecheisen William W., Synchronization of parison profile in a plastic container molding system.
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[미국특허] Process controlling a blow molding machine 원문보기